390 13. MOOKERIEX. [ Pilotrichum. 
Hab. Ins. Jamaica, Heward, Purdie. 
Rami 2-unciales, ramulis 3-6-linearibus ramosi. Folia glauco-viridia, 
pallide fulvescentia. 
Habitu et statura P. compositi, sed folia ramulina diversiformia. 
10. P. procerum (Mitt.) Rami elongati. Folia ramulina dense 
inserta, erecto-patentia, compressa, imbricata, excavata, nervis sub apice 
dorso abruptis parce dentatis, marginibus subcrenulatis inferne reflexis, 
cellulis omnibus ovalibus ellipticisque levibus; perichzetialia externa li- 
nearia, interna lanceolata acuminata nervata, marginibus recurvis apice 
serrulatis. Theca in pedunculo ea paulo longiore scabro, ovalis, operculo 
conico acuminato, peristomii interni dentibus externo longioribus. 
Hab. Ins. Sti. Vincentis, Guilding, Herb. Hooker. 
Rami 9-unciales, ramulis divergentibus parce ramosi, eleganter bipin- 
natim divisi. Folia viridia, fuscescentia. 
ll. P. rrintrense (Mitt.). Rami humiles. Folia patentia, laxe im- 
brieata, concava, margine plana, minute crenulata, nervis approximatis 
distinctis vel plus minus inferne coalitis, supra folii medium evanidis ; 
ramulina pentasticha magis excavata, cellulis omnibus ovali-ellipticis, 
extus levibus, intus limitibus prominulis papillosis. 
Hab. Ins. Trinidad, ad Maraccas et Cheguanas, Black. 
Iconi Hedwigiano P. hypnoidis (Musc. Frond. 3, t. 18) simillimum, e 
foliorum forma autem P. amazonico subaffine. 
12. P. puBIUM (Mitt.). Folia imbricata, concava, acuta, nervis basi 
coalitis ultra folii medium evanidis lævibus, marginibus crenulatis, cel- 
lulis oblongis parvis dorso papillosis. 
Hab. Ins. Guadelupe, Herb. Hooker. 
Rami 3-unciales. P. rugifolio simile. 
The country whence this species was received is not quite 
certain; another specimen, appearing almost as if a portion of the 
same, was marked Madagascar. 
13. P. nvPNorpEs (Sw. Prodr. Fl. Ind. Occ. 138, Neckera; Hedw. 
Musc. Frond. ii. 43, t. 37). Folia erecto-patentia, imbricata, apice latius- 
cula, acuta, excavata, nervis basi sspe coalitis dorso prominulis sub 
apice abruptis anguste alatis, marginibus subcrenulatis, cellulis omnibus 
parvis ovoideis; ramulina magis elliptico-lanceolata ; perich:ztialia longius 
lanceolata. Theca immersa, ovato-oblonga; operculum breve acumina- 
tum; peristomii dentes exteriores albidi, trabeculati, non fissiles, inte- 
rioris cilia totidem tenerrima articulata albida; calyptra pilis erectis his- 
pida.— Brid. 
Hab. Ins. Jamaica, Swartz. 
Rami 2-unciales, subpinnatim ramosi. Folia viridia. Florescentia mo- 
noica (Swartz, Brid. l. c.), dioica autem secundum Hedwig, /. c. 
14. P. ArriN& (Hook. Musc. Exot. t. 122, Neckera). Folia undique 
